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Quality assurance test and Failure Analysis of SiPM Arrays of GECAM Satellites

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arxiv 2109.00235 v2 pith:Y6NKJZHW submitted 2021-09-01 physics.ins-det

Quality assurance test and Failure Analysis of SiPM Arrays of GECAM Satellites

D.L. Zhang , M. Gao , X.L. Sun , X.Q. Li , Z.H. An , X.Y. Wen , C. Cai , Z. Chang
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G. Chen C. Chen Y.Y. Du R. Gao K. Gong D.Y. Guo J.J. He D.J. Hou Y.G. Li C.Y. Li G. Li L. Li X.F. Li M.S. Li X.H. Liang X.J. Liu Y.Q. Liu F.J. Lu H. Lu B. Meng W.X. Peng F. Shi H. Wang J.Z. Wang Y.S. Wang H.Z. Wang X. Wen S. Xiao S.L. Xiong Y.B. Xu Y.P. Xu S. Yang J.W. Yang Fan. Zhang S.N. Zhang C.Y. Zhang C.M. Zhang Fei Zhang X.Y. Zhao X. Zhou
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classification physics.ins-det
keywords sipmgecamassuranceburstsdevicesqualityaerospaceanalysis
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) satellite consists of two small satellites. Each GECAM payload contains 25 gamma ray detectors (GRD) and 8 charged particle detectors (CPD). GRD is the main detector which can detect gamma-rays and particles and localize the Gamma-Ray Bursts (GRB),while CPD is used to help GRD to discriminate gamma-ray bursts and charged particle bursts. The GRD makes use of lanthanum bromide (LaBr3) crystal readout by SiPM. As the all available SiPM devices belong to commercial grade, quality assurance tests need to be performed in accordance with the aerospace specifications. In this paper, we present the results of quality assurance tests, especially a detailed mechanism analysis of failed devices during the development of GECAM. This paper also summarizes the application experience of commercial-grade SiPM devices in aerospace payloads, and provides suggestions for forthcoming SiPM space applications.

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